PAGE 49

SET 3

1 Diagram below shows four different objects. Which of the following sources produce electricity?

Rajah di bawah menunjukkan empat objek yang berbeza. Manakah yang berikut sumber tenaga elektrik.

2 Which of the following symbols can represent a battery in a circuit diagram?

Manakah yang berikut menunjukkan symbol bateri dalam rajah litar elektrik?

3 Diagram below shows a circuit.

Rajah di bawah menunjukkan sebuah litar.

Which sequence shows the correct energy transformation when the bulb lights up?

Urutan yang manakah menunjukkan perubahan tenaga yang betul bila mentol menyala?

AChemical energy Light energy.

Heat energy

Tenaga kimia

Tenaga cahaya.

Tenaga habaBElectrical energy Light energy.

Heat energy

Tenaga elektrik Tenaga cahaya

Tenaga habaCChemical energy Electrical energy Light + Heat energy.

Tenaga kimia

Tenaga elektrik Tenaga cahaya + haba

DElectrical energy Chemical energy Light + Heat energy

Tenaga elektrik Tenaga kimia Tenaga cahaya + haba

4 Which of the following appliance can change electrical energy into heat energy?

Manakah peralatan berikut dapat menukarkan tenaga elektrik kepada tenaga haba.

5 Who is I in the information above?

Siapakah saya dalam penerangan di atas?

6 Which of the following is a complete circuit?

Manakah berikut ialah litar lengkap?

7Diagram below shows a component in a circuit.

Rajah di bawah menunjukkan komponen dalam litar.

What is the function of the component?

Apakah fungsi komponen tersebut?

AProduces light

Menghasilkan cahaya

BSupplies electrical

Membekalkan arus elektrik

CConnect and breaks electric circuit

Menyambung dan memutuskan litar elektrik

DConnects the components in an electric circuit.

Menyambung komponen-komponen dalam litar elektrik

8Which of the following objects uses dry cells as source of electrical energy?

Manakah objek berikut menggunakan sel kering sebagai sumber tenaga elektrik?

9Which of the bulbs in the following circuits will not light up?

Mentol manakah dalam litar di bawah tidak menyala?

10Diagram below shows four pictures.

Rajah di bawah menunjukkan empat gambar.

Which of the following picture possesses kinetic energy?

Manakah berikut menunjukkan tenaga kinetic?

AP and R

BP and S

CQ and R

DQ and S

11Diagram below shows three activities.

Rajah di bawah menunjukkan tiga aktiviti.

Which of the following activities require energy?

Manakah menunjukkan penggunaan tenaga?

AJ only

BJ and K only

CJ,and L only

DJ, K and L.

12Which of the following objects can change electrical energy into sound energy?

Manakah berikut menunjukkan objek yang boleh menukarkan tenaga elektrik kepada tenaga bunyi?

13Diagram below show the television.

Rajah di bawah menunjukkan televisyen.

Which of the following types of energy is not involved in the transformation of

energy when the television is switched on?

Manakah berikut jenis tenaga yang tidak terlibat dalam perubahan tenaga apabila suis televisyen dibuka?

ASound energy

Tenaga bunyi

BLight energy

Tenaga cahaya

CKinetic energy

Tenaga kinetik

DElectrical energy

Tenaga elektrik

14Diagram below show two objects.

Rajah di bawah menunjukkan dua objek.

What is the source of electrical energy for object P and Q in diagram above?

Apakah sumber tenaga elektrik bagi objek P dan Q dalam rajah di atas?

PQ

Accumulator

AkumulatorDry cell

Sel kering

Hydroelectric power

Tenaga elektrik hidroSolar cell

Sel suria

Dynamo

DinamoAccumulator

Akumulator

Solar cell

Sel suriaHydroelectric power

Tenaga elektrik hidro

15 Which of the following is correct symbol for the electrical component?

Manakah berikut symbol yang betul untuk komponen elektrik?

16 Diagram below shows four objects.

Rajah di bawah menunjukkan empat objek.

Which of the above object will produce a shadow when light is directed towards?

Manakah objek di atas akan menghasilkan bayang-bayang apabila cahaya dipancarkan?

AP and Q

BP and R

CQ and R

DQ and S

17Diagram below shows a solar powered calculator.

Rajah di bawah menunjukkan kalkulator menggunakan kuasa suria.

In a calculator, solar energy is transformed into

Dalam kalkulator, tenaga suria berubah kepada

Aelectrical energy

tenaga elektrik

Blight energy

tenaga cahaya

Cheat and light energy

tenaga haba dan cahaya

Delectrical and light energy

tenaga elektrik dan cahaya

18Which of the appliances is the main source of energy?

Peralatan manakah adalah sumber tenaga yang utama?

19 Diagram below shows the side mirror of a car.

Rajah di bawah menunjukkan cermin sisi pada sebuah kereta.

We can see objects in this side mirror because light ..

Kita boleh melihat objek dalam cermin sisi kerana

A is blocked

dihalang

Bis reflected

dibiaskan

Cis absorbed

diserap

Dtravels in a straight line

bergerak dalam garis lurus

20Diagram below shows a shadow of the ball formed on the screen. What would happen to the shadow if the ball is moved closer to the light source?

Rajah di bawah menunjukkan bayang-bayang bola yang terbentuk pada skrin. Apakah yang berlaku kepada bayang-bayang jika bola digerakkan menghampiri sumber cahaya?

AIts size become smaller

Size semakin kecil

BIts size become bigger

Size semakin besar

CIts size does not change

Size tidak berubah

DIts becomes clearer

Semakin terang21Which of the following are factors that affect friction?

Antara berikut, yang manakah factor yang mempengaruhi geseran?

IThe condition of the surfaces

Keadaan permukaan

IIThe size of the object

Saiz objek

IIIThe weight of the object

Berat objek

IVThe colour of the surfaces

Warna permukaan

AI and II

BI and III

CII, and IV

DIII, and IV

22

Based on the diagram above, which of the following represents P?

Berdasarkan rajah di atas, yang manakah mewakili P?

A Change the direction of an object

Menukar arah pergerakan objek

B Increase the size of an object

Menambah saiz objek

C Increase the mass of an object

Menambah berat objek

D Change the volume of an object

Menukar isipadu objek

23 Which of the following activities has the same type of force as the action in diagram below?

Antara berikut, aktiviti manakah mempunyai daya yang sama denngan rajah di bawah?

A Hitting a hockey ball

Memukul bola hoki

B Kicking a football

Menendang bola

C Fetching water up from a well

Mengangkat air dari telaga

D Pressing a doorbell

Menekan loceng pintu24 Which of the following activities involves force?

Antara aktiviti berikut, yang manakah melibatkan daya?

A Burning

Pembakaran

B Reading book

Membaca buku

CTearing paper

Mengoyak kertas

D Freezing

Membeku

25 Which of the following statements is true about force?

Kenyataan manakah yang benar mengenai daya?

I Pushing a bicycle needs force

Daya diperlukan apabila menolak basikal

II Force can be seen

Daya boleh dilihat

III Force can change the shape of an object

Daya boleh mengubah bentuk sesuatu objek

IVPeople who are walking do not use force

Manusia yang berjalan tidak menggunakan daya

A I and II

B I and III

C II and III

D III and IV

26Diagram below shows the change in an object when pushing and pulling forces are applied

Rajah di bawah menunjukkan objek yang dikenakan daya tarikan dan tolakan

What is that change?

Apakah yang diubah?

A Change in position

Mengubah kedudukan

B Change in taste

Mengubah rasa

C Change in shape

Mengubah bentuk

D No change

Tidak berubah

27 The diagram below shows the action of force

Rajah di bawah menunjukan suatu tindakan daya.

What do you think will happen when the hammer strikes the rock?

Apakah yang anda jangka akan berlaku kepada batu apabila diketuk dengan tukul?

I The shape of the rock changes

Bentuk batu berubah

II The colour of the rock changes

Warna batu berubah

III The rock rolls away

Batu bergolek

IVThe size of the rock increases

Saiz batu bertambah

A I and II

B I and III

CII and III

D III and IV

28 Which of the following situations is not caused by a pulling force?

Antara berikut, situasi manakah yang bukan disebabkan oleh daya tarikan?

A

C

B

D 29Which of the following statements are true?

Pernyataan manakah yang benar?

I Pushing and pulling are types of forces

Menolak dan menarik adalah sejenis daya

II Force can stop the movement of an object

Daya boleh memberhentikan pergerakan objek

III A pushing force can change the colour of an object

Daya tolakan boleh mengubah warna objek

IV A pulling force cannot change the speed of an object

Daya tarikan tidak boleh mengubah kelajuan objek

A I and II

B II and IV

C III and IV

D I and IV

30Choose the action which involves the same force as the one shown in diagram below.

Pilih tindakan yang melibat daya yang sama dengan rajah di bawah.

.

A Pulling weeds

Mencabut rumput

B Reading a book

Membaca buku

C Sawing a plank of wood

Mengergaji kayu

D Stretching a spring

Meregang spring

1A fair test is carried out by a group of pupils.

Satu ujikaji telah dijalankan oleh sekumpulan murid.

a) What is the aim of the fair test?

Apakah tujuan ujikaji?

.

b) What is the difference of size between shadows in X and Y?

Apakah perbezaan saiz antara bayang X dan Y

.

c) Give reason for your answer in b).

Berikan alasan anda untuk jawapan di b).

.

d) In the fair test, state;

Berdasarkan ujikaji ini, nyatakan :

i) What is changed

Apa yang diubah:

ii) What is kept the same

Apakah yang dimalarkan:..

iii) What is observed

Apakah yang diperhatikan:

240 ml of liquid is poured into a beaker containing 80ml of liquid. The temperature of water in the beaker is recorded for 10 minutes. The result is a show in the table.40 ml cecair dituangkan ke dalam sebuah bikar yang mengandungi 80 ml cecair sejuk. Suhu di dalam bikar dicatat selama 10 minit. Keputusan seperti yang ditunjukkan di dalam jadual.Time (min)

Masa (min)0246810

Temperature ( 0C )

Suhu ( 0C )706050403535

(a) What is the aim of this fair test ?

Apakah tujuan ujikaji ini ?

(b) What is the pattern / trend of the change in temperature from 0th 8th min ?

Apakah corak perubahan suhu dari 0th 8th min ?.

(c) What is the relationship between the time and temperature ?

Apakah hubungan antara masa dan suhu ?

..

(d) Predict the temperature of water at 14th minute?

Ramalkan suhu air pada minit ke 14th ?

.

(e) What can you conclude from the fair test at minutes 8 th to 10 th ?Apakah yang dapat disimpulkan daripada ujikaji ini pada minit ke 8 th ke 10 th ?

.

3The diagrams show the result of an investigation.

Rajah menunjukkan keputusan satu ujikaji.

Circuit X

Circuit Y

Litar X

Litar Y

Observation: The bulbs in circuit Y are brighter than the bulbs in circuit X.

Pemerhatian : Mentol dalam litar Y lebih cerah daripada mentol dalam litar X

(a) Give reason why bulbs in circuit Y are brighter ?

Kenapa mentol dalam litar Y lebih cerah ?

(b) In the fair test, state

Daripada ujikaji ini, nyatakan

(i) What is kept the same?

Apakah yang sama ?

(ii) What is changed ?

Apa yang diubah ?

(iii) What is measured / observed ?

Apa yang diukur ?

(c) From the fair test, we can conclude that the bulbs are brighter when they are connected in circuit than circuit.Daripada ujikaji ini, kita boleh membuat kesimpulan iaitu mentol lebih cerah apabila disambung dalam litar berbanding.4The table below shows the result of time taken by four boys M, N, O and P in the 100m running event.

Jadual di bawah menunjukkan masa yang diambil oleh empat murid lelaki, M, N, O dan P dalam acara 100m.Boy

Budak LelakiTime taken to complete 100 m running event ( s )

Masa diambil untuk menamatkan larian 100m (s)

M26

N20

O22

P15

a ) Which boy ran

Murid lelaki yang berlari

(i ) the fastest :

paling laju : (ii ) the slowest :

paling perlahan :

b ) State what to measure from the above investigation ?

Nyata apa yang diukur dalam eksperimen di atas?

c ) Rearrange the boys from the first winner to the fourth runner.

Susunkan kedudukan mereka daripada johan kepada yang keempat.

.

d)What can you conclude from the above investigation?

Apakah kesimpulan yang dapat dibuat berdasarkan ujikaji ini ?

.A

C

B

D

A

C

B

D

A

B

C

D

I have a positive pole and negative pole.

Saya mempunyai punca positif dan negative.

I supply electricity to the electric circuit

Saya membekalkan tenaga elektrik kepada litar elektrik.

A

C

B

D

A

C

B

D

A

B

C

D

A

C

B

D

P

R

Q

S

J

K

L

A

C

B

D

P

Q

A

B

C

D

Electrical component

Symbol

A

B

C

D

P

Q

R

S

A

B

C

D

Image

Imej

screen

ball

Light source

Force

Daya

Change the shape of an object

Mengubah bentuk objek

P

Opaque object

Objek legap

Torch light

Lampu suluh

Screen

Skrin

SCIENCE MODULE INVESTIGATING FORCE AND ENERGY

@AKRAM TERENGGANU